The app is an electronic version of a small, cardboard calendar. It contains only the most important events - the great feasts and fasts.

It is designed to remind you about the events in advance through notifications. It contains all the important dates and fasts for all the major Orthodox churches. You can also view the calendars of the different churches in the app.

You can also view the calendar of the great feasts and fasts, and set or clear the appropriate checkboxes to customize the notifications.

In order to receive notifications, the app requires an internet connection. If you want to learn more about the events, you can press the built-in description of each link.